Publish

1 files changed, 24 insertions, 0 deletions

diff --git a/bundle-plugin/src/main/scala/com/yahoo/container/plugin/util/JarFiles.scala b/bundle-plugin/src/main/scala/com/yahoo/container/plugin/util/JarFiles.scala
new file mode 100644
index 00000000000..86e46295448
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+++ b/bundle-plugin/src/main/scala/com/yahoo/container/plugin/util/JarFiles.scala
@@ -0,0 +1,24 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.container.plugin.util
+
+import java.util.jar.JarFile
+import java.util.zip.{ZipFile, ZipEntry}
+import IO.using
+import java.io.{Closeable, InputStream, File}
+
+/**
+ * @author  tonytv
+ */
+object JarFiles {
+  def withJarFile[T](file : File)(f : JarFile => T ) : T =
+    using(new JarFile(file) with Closeable, readOnly = true)(f)
+
+  def withInputStream[T](zipFile: ZipFile, zipEntry: ZipEntry)(f: InputStream => T): T =
+    using(zipFile.getInputStream(zipEntry), readOnly = true)(f)
+
+  def getManifest(jarFile : File) : Option[java.util.jar.Manifest] = {
+    withJarFile(jarFile) { jar =>
+      Option(jar.getManifest)
+    }
+  }
+}